This document presents an update of document FCCC/KP/AWG/2010/INF.1 which contains a compilation of pledges for emission reductions and related assumptions provided by Parties to date and the associated emission reductions. It provides the background information from Parties on pledges and related assumptions, an overview of these pledges and estimates prepared by the secretariat of the emission reductions for Annex I Parties that are Parties to the Kyoto Protocol individually and in aggregate, in accordance with pledges. It also provides an overview of the information and estimates of possible contribution of factors, such as the use of the Kyoto Protocol mechanisms and land use, land-use change and forestry to achieving emissions reductions in accordance with the pledges